Re: partially parenthizing a chord

[Werner LEMBERG]

>> I would like to parenthesize the lower two notes of the chord.
>> There should be a single parenthesis to the left and right
>> (contrary to what `\parenthesize` does).
> 
> Does something like this help?

Yes, very nice!

> (The logic here is for the engraver to generate a single
> ParenthesesItem for any given timestep, while also modifying the
> print routine to vertically scale the stencil to encapsulate the
> elements.  For demonstration purposes, I have \consisted the
> engraver at the Voice level so that each one can have its own set of
> parentheses.)

I have one wish to improve the appearance of the parentheses: Would it
be possible to scale the parentheses glyphs (i.e., scaling
`ParenthesisItem.font-size`) according to the `y-scale` value?  Right
now, the parentheses are very thin horizontally.


    Werner